Oscillation

What is period?

What is frequency?

What is amplitude?

The distance away from the equilibrium point

What is a phase?

What is a phase constant?

How do you determine the phase constant?

Where does the object has the most kinetic energy?

At the equilibrium position

How does the potential energy and kinetic graph looks like in oscillation?

What are the small angle approximation

What is important for vertical oscillation? 

The equilibrium position is where the spring is stretched due to the weight 

What are the formulas for torsion pendulum?

What is important for damping oscillation?

angular velocity is roughly the same